有机锡化合物催化氰酸酯树脂固化反应的研究——(Ⅱ)催化剂的生成反应及催化固化反应机理

CURING REACTION OF CYANATE ESTER RESIN CATALYZED BY ORGANIC TIN COMPOUND ——(Ⅱ) CATALYST FORMATION AND THE MECHANISM OF CURING REACTION OF CYANATE ESTER RESINS

用傅立叶变换红外光谱(FT-IR)法研究了有机锡化合物催化剂(H9C4)2Sn(NCO-R-OCN)2的反应生成过程,并提出了氰酸酯三嗪化催化聚合反应的机理。

Organic tin compound ((H_9C_4)_2Sn(NCO-R-OCN)_2) has found to have high catalytic activity to cyanate ester resin curing reaction. The forming reaction of this catalyst agent has been investigated using FT-IR method. A mechanism of cyclotrimerizatin is proposed based on the kinetic data as well as FT-IR spectrum. This involves the catalyst forming and the catalyze of triazine reaction.